/* breadcrumb transition */
.breadcrumb-enter-active,
.breadcrumb-leave-active {
  transition: all 0.5s;
}

.breadcrumb-enter-from,
.breadcrumb-leave-active {
  opacity: 0;
  transform: translateX(20px);
}

.breadcrumb-leave-active {
  position: absolute;
}

/* fade */
.fade-enter-active,
.fade-leave-active {
  transition: opacity 0.28s;
}

.fade-enter,
.fade-leave-active {
  opacity: 0;
}

/* fade-transform */
.fade-transform-leave-active,
.fade-transform-enter-active {
  transition: all 0.5s;
}

.fade-transform-enter-from {
  opacity: 0;
  transform: translateX(-30px);
}

.fade-transform-leave-to {
  opacity: 0;
  transform: translateX(30px);
}

/* router view transition */
.zoom-fade-enter-active,
.zoom-fade-leave-active {
  transition: transform 0.35s, opacity 0.28s ease-in-out;
}

.zoom-fade-enter-from {
  opacity: 0;
  transform: scale(0.97);
}

.zoom-fade-leave-to {
  opacity: 0;
  transform: scale(1.03);
}
// 边框
.content-border {
  border: 2px solid #173665;
  border-radius: 8px;
  background: rgba(6, 40, 102, 0.3);
  padding: 15px;
}
.mb2 {
  margin-bottom: 1.3vw;
}
._flex {
  display: flex;
}
._flex_center_center {
  display: flex;
  justify-content: center;
  align-items: center;
}
._flex_between_center {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
._flex_around_center {
  display: flex;
  justify-content: space-around;
  align-items: center;
}